1 files changed, 40 insertions, 0 deletions
diff --git a/src/org/traccar/model/Extensible.java b/src/org/traccar/model/Extensible.java
index efe60fb75..b8c83bb21 100644
--- a/src/org/traccar/model/Extensible.java
+++ b/src/org/traccar/model/Extensible.java
@@ -68,4 +68,44 @@ public class Extensible {
         }
     }
 
+    public String getString(String key) {
+        if (attributes.containsKey(key)) {
+            return (String) attributes.get(key);
+        } else {
+            return null;
+        }
+    }
+
+    public double getDouble(String key) {
+        if (attributes.containsKey(key)) {
+            return ((Number) attributes.get(key)).doubleValue();
+        } else {
+            return 0.0;
+        }
+    }
+
+    public boolean getBoolean(String key) {
+        if (attributes.containsKey(key)) {
+            return Boolean.parseBoolean(attributes.get(key).toString());
+        } else {
+            return false;
+        }
+    }
+
+    public int getInteger(String key) {
+        if (attributes.containsKey(key)) {
+            return ((Number) attributes.get(key)).intValue();
+        } else {
+            return 0;
+        }
+    }
+
+    public long getLong(String key) {
+        if (attributes.containsKey(key)) {
+            return ((Number) attributes.get(key)).longValue();
+        } else {
+            return 0;
+        }
+    }
+
 }